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Potassium methoxide

Potassium methoxide structure

CAS No.: 865-33-8

Chemical Name:: Potassium methoxide

Synonyms: Methoxypotassium;Kaliummethanolat;Potassium methoxide;Methanol,potassiumsalt;PotassiuM Methoxide 95%;Potassiummethoxidesolid;HPLC Potassium methoxide;Potassium methoxide, 90+%;Potassiummethoxide,95-99%;potassium methoxide solution

CBNumber:: CB0501840

Molecular Formula:: CH3KO

Molecular Weight:: 70.13

MDL Number:: MFCD00012416

MOL File:: 865-33-8.mol

MSDS File:: SDS

Last updated:2026-01-13 11:13:24

Product description	Number	Pack Size	Price
Potassium methoxide solution ~25% in methanol (T)	60402	250ML	$191
Potassium methoxide solution ~25% in methanol (T)	60402	1L	$517
Potassium methoxide 95%	292788	5g	$64.4
Potassium methoxide 95%	292788	250g	$161
Potassium Methoxide	288256	100g	$319
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Potassium methoxide Properties

Melting point	-20°C
Boiling point	84°C
Density	0.95 g/mL at 20 °C
vapor pressure	0Pa at 25℃
refractive index	n20/D 1.37
Flash point	7°C
storage temp.	Store below +30°C.
solubility	Soluble in methanol and ethanol.
pka	15.17[at 20 ℃]
form	Liquid
Specific Gravity	0.95
color	Clear colorless
PH	12.8 (7g/l, H2O, 20℃)
Water Solubility	may decompose
Sensitive	Moisture Sensitive
Hydrolytic Sensitivity	7: reacts slowly with moisture/water
BRN	3551544
Exposure limits	ACGIH: TWA 200 ppm; STEL 250 ppm (Skin) OSHA: TWA 200 ppm(260 mg/m3) NIOSH: IDLH 6000 ppm; TWA 200 ppm(260 mg/m3); STEL 250 ppm(325 mg/m3)
Stability	Stable. Reacts violently with water. Moisture sensitive. Absorbs carbon dioxide from the air. Incompatible with acids, strong oxidizing agents, acid chlorides, acid anhydrides, alkali metals.
InChI	1S/CH3O.K/c1-2;/h1H3;/q-1;+1
InChIKey	BDAWXSQJJCIFIK-UHFFFAOYSA-N
SMILES	[K+].C[O-]
CAS DataBase Reference	865-33-8(CAS DataBase Reference)
FDA UNII	45MYQ0GWGB
EPA Substance Registry System	Methanol, potassium salt (865-33-8)
UNSPSC Code	12352107
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS02,GHS05,GHS06,GHS08

Signal word

Danger

Hazard statements

H225-H301+H311+H331-H314-H370

Precautionary statements

P210-P280-P301+P310+P330-P301+P330+P331-P303+P361+P353-P305+P351+P338+P310

PPE

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Hazard Codes

F,T,C

Risk Statements

11-14-34-67-65-63-48/20-39/23/24/25-38-23/24/25

Safety Statements

8-16-26-43-45-62-46-36/37/39-33-29-25

RIDADR

UN 3274 3/PG 2

WGK Germany

3-10-23

Autoignition Temperature

30 - 50 °C

TSCA

TSCA listed

HazardClass

4.2

PackingGroup

HS Code

29051900

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

Hazard Classifications

Self-heat. 1
Skin Corr. 1B

Limited Quantities

1.0 L (0.3 gallon) (liquid)

Excepted Quantities

Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)

NFPA 704

	3
3		0
	W

Potassium methoxide price More Price(13)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	60402	Potassium methoxide solution ~25% in methanol (T)	865-33-8	250ML	$191	2026-03-19	Buy
Sigma-Aldrich	60402	Potassium methoxide solution ~25% in methanol (T)	865-33-8	1L	$517	2026-03-19	Buy
Sigma-Aldrich	292788	Potassium methoxide 95%	865-33-8	5g	$64.4	2026-03-19	Buy
Sigma-Aldrich	292788	Potassium methoxide 95%	865-33-8	250g	$161	2026-03-19	Buy
Usbiological	288256	Potassium Methoxide	865-33-8	100g	$319	2021-12-16	Buy

Product number	Packaging	Price	Buy
60402	250ML	$191	Buy
60402	1L	$517	Buy
292788	5g	$64.4	Buy
292788	250g	$161	Buy
288256	100g	$319	Buy

Potassium methoxide Chemical Properties,Uses,Production

Chemical Properties

solid

Uses

Potassium methoxide is used as a chemical intermediate. It is also used in biodiesel production and in fuel additives. It acts as a catalyst for the preparation of methyl formate and an alkaline catalyst for dimethyl formamide. Further, it is used as versatile reagents in chemical reactions such as condensation, esterification, alkoxylation and etherification, Claisen condensation, Wolf-Kishner reduction and Stobbe reaction.

Fire Hazard

Flammable solid, igniting in moist air. Rapid addition in bulk amount into halogenated solvents may cause an explosion. Reaction with arsenic pentafluoride in benzene can result in explosion (Kolditz 1965).

Flammability and Explosibility

Flammable

Potassium methoxide Preparation Products And Raw materials

Raw materials

Methanol

Preparation Products

3-Fluoro-4-nitroanisole Methyl 3-methyl-4-nitrobenzoate Dodecyltrimethoxysilane Methyl picolinate potassium phenolate

4-BROMO-1-METHYL-1H-INDOLE 2,3,4,5,6-PENTAFLUOROTOLUENE 2-Methoxyquinoline 2,5-DIMETHYLANISOLE 3,5-Dimethoxypyridine

3-methoxy-4-nitrophenol ADAMANTANE-1-CARBOXYLIC ACID METHYL ESTER 4-METHOXYAZOBENZENE METHYL 3-FLUOROBENZOATE 1-Methoxy-2,4-dinitrobenzene

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Potassium methoxide Suppliers

Global( 216)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	+8615350571055	Sibel@chuanghaibio.com	China	8738	58
Hebei Yanxi Chemical Co., Ltd.	+8618531123677	faithe@yan-xi.com	China	5853	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21592	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29822	58
Shandong chuangyingchemical Co., Ltd.	18853181302	sale@chuangyingchem.com	CHINA	5906	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49977	58
Richest Group Ltd	18017061086	oled@richest-group.com	CHINA	5600	58
Neostar United (Changzhou) Industrial Co., Ltd.	+86-0519-85551759 +8613506123987	marketing1@neostarunited.com	China	8828	58
SIMAGCHEM CORP	+86-5922680277 +86-13806087780	sale@simagchem.com	China	17346	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58

Supplier	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	58
Hebei Yanxi Chemical Co., Ltd.	58
Henan Tianfu Chemical Co.,Ltd.	55
career henan chemical co	58
Shandong chuangyingchemical Co., Ltd.	58
CONIER CHEM AND PHARMA LIMITED	58
Richest Group Ltd	58
Neostar United (Changzhou) Industrial Co., Ltd.	58
SIMAGCHEM CORP	58
Hefei TNJ Chemical Industry Co.,Ltd.	58

View Lastest Price from Potassium methoxide manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-03-20	Potassium methoxide 865-33-8	US $10.00 / KG	1KG	99%	10 mt	Hebei Chuanghai Biotechnology Co., Ltd
2025-06-20	Potassium methoxide 865-33-8	US $20.00-1.00 / kg	1kg	0.99	20 tons	Hebei Yanxi Chemical Co., Ltd.
2021-08-12	Potassium methoxide 865-33-8	US $15.00-10.00 / KG	1KG	99%+ HPLC	Monthly supply of 1 ton	Zhuozhou Wenxi import and Export Co., Ltd

Potassium methoxide
865-33-8
US $10.00 / KG
99%
Hebei Chuanghai Biotechnology Co., Ltd

Potassium methoxide
865-33-8
US $20.00-1.00 / kg
0.99
Hebei Yanxi Chemical Co., Ltd.

Potassium methoxide
865-33-8
US $15.00-10.00 / KG
99%+ HPLC
Zhuozhou Wenxi import and Export Co., Ltd

Potassium methoxide Spectrum

Potassium methoxide(865-33-8)Raman Potassium methoxide(865-33-8)FT-IR

865-33-8(Potassium methoxide)Related Search:

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POTASSIUM TARTRATE Potassium carbonate Potassium nitrate

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